This type of water heater in everyday life is called a boiler . The design is a tank with a heating element that brings water to a certain temperature and maintains it at that level. A gas storage water heater without a chimney or with it is the ideal solution for apartment owners in high-rise buildings where there are constant problems in hot water. This issue is especially troubling in the cold season and the off-season.
Gas water heater storage: why is gas better than electricity?
The biggest and most obvious advantage of gas over power from the grid is power. If the electric models in most cases have a power of the order of 1.3-3 kW, the gas storage boiler starts from 4-6 kW. This is a significant time saving. If two boilers of the same volume are switched on at the same time, the difference in time will be two to three hours in favor of gas.
The gas storage column is of two types, depending on the presence of the chimney. There is a variant with a closed and open combustion chamber. For the second, a little more money will be needed. But the cost of the first time is one and a half times higher. You will have to calculate both options and decide which one is more profitable.
And of course, the wall-mounted gas storage water heater is more economical due to the difference between the cost of gas and electricity. The design of the gas type will cost you more when buying more, but it will pay off after a while.
As for the drawbacks of storage gas water heaters, then it's all about installation. The boiler needs a centralized gas supply, and a number of requirements are also presented to the installation site.
Storage-type gas columns: how to choose?
- Let's start with volume. The size of the tank depends on several factors. The first of these is the number of family members. The accumulating gas water heater must cover all the needs of the family, but do not overexpend the resources. Acquire a large boiler for two economically unjustified purchase. You also have to push off and from the installation site: large tanks need to be installed somewhere, that in a standard apartment is not always easy. For one person, the recommended amount of hot water is about 50-80 liters. From this minimum, you can choose the size of the water heater.
- The storage gas boiler can have a tank with different internal coatings. Used titanium, stainless steel and glass porcelain. The main objective of this coating is to protect the structure from corrosion. The most popular is a storage gas water heater with a glass-porcelain and enamel. The cost of such structures is slightly lower, but it protects not worse. But from the temperature drops, microcracks may appear over time. Titanium and stainless coatings are considered to be more durable. The warranty service period for them is several years longer, but the price is also much higher.
- The capacity of the storage water heater determines the heating time. Also worth paying attention to the model with two
TEN. For example, if the claimed power is about 3 kW, then instead of one, two elements can be installed with capacities of 1 and 2 kW. Convenience is that if one of them fails, you can use hot water before the wizard arrives. - Do not look for models with a very high degree of heating. The fact is that practice has proved: heating to 60 degrees will completely satisfy all needs. So there's no point in spending a lot of money.
- If the store in front of you two models with the same volume, but one of them is much smaller, it has a thinner insulation layer. In this tank the water will cool faster.
Other variants of gas water heaters are flow type models , which also have their own peculiarities.